Grain growth, densification and gyromagnetic properties of LiZnTi ferrites with H3BO3-Bi2O3-SiO2-ZnO glass addition
(0) LiZnTi (Li0.43Zn0.27Ti0.13Fe2.17O4) ferrites doped with 0.35wt%-l.5wt% H3BO3-Bi2O3-SiO2-ZnO (BBSZ) were synthesized through low temperature ceramic sintering process.The grain growth of BBSZ doped LiZnTi ferrites was discussed by using the liquid phase sintering mechanism.BBSZ promoted grain growth via liquid phase sintering, and the addition of the optimum content of BBSZ could reduce porosity of the sample.Meanwhile, selected parameters of saturation induction (Bs), coercivity (Hc) and ferromagnetic resonance line width (ΔH) were measured as functions of doping content, and their relationships with ferrite porosity and microstructure were discussed.The LiZnTi ferrite samples containing x =0.5, 0.65 and 0.8 sintered at 920℃, 900℃ and 880℃, respectively, exhibited high saturation induction (Bs) and low ferromagnetic resonance line width (ΔH) at 9.3GHz.The addition of proper content of BBSZ can not only improve the saturation induction (Bs), but also reduce the coercivity (Hc) and ferromagnetic resonance line width (ΔH) by low temperature (~900℃) liquid phase sintering.
saturation induction ferromagnetic resonance line width coercivity
Tingchuan Zhou Huaiwu Zhang Lijun Jia Jie Li Zhiyong Zhong LiChuan Jin Hua Su
School of Microelectronics and Solid State Electronics,University of Science and Technology of China,Chengdu 610054,China
国内会议
成都
英文
268-272
2013-11-15（万方平台首次上网日期，不代表论文的发表时间）